WDB Ringwalztechnik GmbH

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Witten, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for rolling bevel gears on an axial stamping rolling machin...
- Patent number 6,076,387
- Issue date Jun 20, 2000
- WDB Ringwalztechnik GmbH
- Frank Siewert
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for producing annular workpieces from metal with a profiled...
- Patent number 5,946,959
- Issue date Sep 7, 1999
- WDB Ringwalztechnik GmbH
- Klaus-Peter Anderheyden
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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